Electrically-operating printing device.



, AI R. BULLOCK ELECTRICALLY OPERATINGXRINTING DEVICE 4 APPLICATIONFILED APR-24.-l913. 1,275,657. malted Aug. 13, 1918.

v 4 SHEETS-SHEET I.

yn. B-ULLOCK. "E LECTRICAlLY OPERATINZG PRINTING DEVICE.

APPLICATION mm APR-24. 1913. I v 1,275,657. Patented Aug. 13,-191&

4 SHEETS-SHEET 2.

srATEs PATENT OFFICE.

ABTHlJ'R BULIIQQK, OFQPEV'ELAND, OHIO...

To all whom it may concern:

-Beit known that I, ARTHUR R. BULLOCK,

a citizen of the United States, residing at 7 Cleveland in the county ofOuyahoga and State of hio, have invented acertaln'new and usefulImprovement in Electrically- Operating Printing Devices, of-which thefollowing is a full, clear, and exact description.

This invention relates to a mechanism for automatically causing theselectionof print ing elements according to a predeterminedrelationship.

The invention herein disclosed i applicable to linotype machines, typeseting machines or snnilar machines, as Well as to printing machines such;as typewriters and similar machines.

sired legend.

' its is well For purposes of disclosure, I will describe my inventionas applied to a type writing machine, but this orms no limitation uponits other uses.

Generally speaking, his invention, as applied to typewriters, has forits object to provide atypewriter, which will automatically writepredetermined legends, such as words, phrases or sentences, all of whichcept that theremight be slight changes"rea form. Good custom andbusiness etiquette latin'g to dates prices' or similar matter.

But it is-however, considered bad business form tosencl out theseletters as aprlnted u demand that a typewritten letter be ,sent,

and therefore there is in many businesses a, q needless waste ot'timeand energy in prepare 1 ing such letters by ordinary manual meth-L 'ods.A

By this invention the loss of time and energy incident to such lettersas well as expense may be largely eliminated, for the typewriting can bemade largely automatic in the writing of the various stereotype parts ofthe letter, stopping at such time as necessaryv for the operator toinsert the special ELncrnIcaLLY-orEnArme ranvrme EVICE,

, Sp ification of retiremen Patented Aug. 13,1918; 3 Application filedApril 24, 1913.. Serial No. 763,200.

item or matterand finally producing a-fin- I ished. letter largely, orperhaps wholly automatically written, yet presenting all the featuresofa manually typewritten letter. Another feature of a machine of thischaracter lies in the fact that the stenographer or operator is saved alarge amount of needless labor, thereby making it possible for time, andto do it more efliciently.

the operator to do more work in a given p I- am aware that it has beenproposed to place, the type letters of a word or phrase cause the wordsor phrases to be printed by the oneoperation of the type bar. My deoflimited extent upon a single type bar, so that an operation of thesinglebanwill vice difi'ers from such constructions in that theindividual type bars carrying the letters composing the legend areoperated; success'ively and in proper sequence.

As will readily be seen this automatic writing may, not only be a wordorphrase,

multiplied toany extent.

but a sentenceor a suc cessionof. sentences such automatic t'y'pewritingby. the instrumentality of a typewriter. lie'sjin the fact that all thepeculiarities time particular machine appear throughout the automati-.cally written part, so that there will be no typographical differencesbetween the auto'-.

matically written part and thehand written part.

.Furthermore, the machine of this invention malfres it possible to causethe type to make impressions of varying strength,-

thereby more clearly simulating the manually written part, for it isvery well'known that in manually'written letters all the i1npressions ofthe letters are not of equal strength, due to the fact that the operatordoes not press all the keys with equal pressure,

"Generallyspeaking, theinvention may be saidfto comprise the elementsand combinations thereof set forth n the accompanymg claims forming apart ofthis specifica tion,

- Reference should be had tothe accompanying drawings, in which Figure 1'is a side elevation with portions insection of a form of typewriterembodying my invention. Fig. 2 is a rear elevation of a portlon of themechanism of my invention.. F1 3 1s an 7 elevation of certain relays empoyed.

' switch button modified form Fig. 4. is a. top plan view of the keys orto make the inaugural electrical-connection. Fig. 5 is a'rear elevationsimilar to that shown in, Fig. 2, but of a modified construction. Fig. 6is a side elevation of a disk and contact bar such as shown in Fig. 5."Fig. 7 is an enlarged view of a of legendudisk. Fig. 8 is adiagrammatic illustration of the electrical connections between themotor and battery. Fig. 9 is a dia ram of electrical connections betweenthe attery, ty'pebar solenoids, the distributer board and a legend disk.Fig. 10, is a diagram of the electrical connections'between the batteryrelay. and time switch which holds the relay circuit closed. Fig. 1 1 isa diagram of the electrical eonneetions between the variousinstrumentali-' ties of mydeviee, and a single battery when asingle.legend diskis used, Fig. 12 is a diagram similar to Fig.-1 1,- exceptthat two legend disks'are used. Fig. 13. is an elevation with portionsiii section of one part of the machine. f

In Fig. 1 there is illustrated a double keyboard' typewriting machine,the construction of which for the purpose of this invention may be ofordinary and usual type and in which board eludes a basal, carrying-atrack 2 upon which I in turn carries aplaten ,4. The key-' barsrepresented'generally at 6. The mountof the type-bars, as well as-themechani corresponds to the number of characters or keys representedinthe keyboard. Each solenoid is of ordinaryconstruetion and is providedwith a hollow central portion, into which may slide a permeable core 8.The core of each solenoid is connected in the present instance directlywith one of the keys, by means ofa link such as illustrated at 9, in;Fig. 1. I

The particular showing of the connectlon between the solenoid I cores,and the key board isbut by way of illustration, and no n Mounted uponthe disk 12 is an arm 14,

particular claimis made to this feature.

, The important .faetin' connection with the construction is that theoperation of the cores of the solenoid will effect a movement I of thecorresponding type-bar to which it is mechanically connected. e I

From the construction as just descr bed, it will be. clear that when anysolenoid 1s electrically energized, it will cause a moveplaced sothatunder ordinary conis mounted a traveling carriage 3,

is represented at 5, and is connected by suitable link elements with anest of typethe' number of solenoids,

be moved farther into the solenoids, as the various solenoids areenergized. This movement of the core into the solenoids produces themovement of a corresponding type bar, which will in turn produce animpression upon the platen,

Each solenoid has thereof connected in of electrical energy, while theother end of the sanding thereof is electrically connected to adistributing board, as shown at 10 in Fig. I. This board is a platformprovided with projecting posts, one of which is represented at 11, andto the proper posts there is connected the solenoid winding.

At 12, in Fig. 1, there is represented what I I term a legend disk. Inthe particular form of the invention shown, this disk is secured upon aproper base. Upon one surface of the disk there is provided aseries ofcontact points, represented at 13, which may be of 3 any desiredconstruction, and suitable electrical connections are made between the,posts 11 of the distributing board and the contacts 13, to spell outthe particular word, phrase or sentence which it is desired to an- Forinstance if it be detomatically write.

words.Dear Sir, the

sired to write the first contact 13 will be connected to thedistributing board, and to the post thereon connected tothe solenoidwhich operates the D type bar, and so on through the word Dear. To spacethe words, the'fifth contact would be connected through the distributingboard with the solenoid which operates the spacer bar. The electricalconnection to effect the writing of the word Sir would, in kind, be justthe same as that described, for-the word Dear.

' If it be desired to capitalize the words Dear? and Sir, then thecontact 13" and the proper'subsequent contacts would also be parallelwith a source electrically connected through the distrib- .utingboardwith the solenoids which operate thekeys carrying capital D and capi- .SI I Of course it will be understood that in the event this invention beapplied to a single keyboard machine, the contact 13 and the. sixthcontact therefrom will be connected to the solenoid which operates theshift key.

engage with the contact-13, and near its mner portion the arm isprovided with a contact which'engages with a ring 16 of 0011- 'ductingmaterial, which ring is mounted upon the disk. This ring is electricallycon- I nected with the source of electrical energy.

blage of instrumentalities which. have just i been described may bevdlagralnmatically Leaner? The electrical onnections for theassemillustrated in Fig. 9, and from this it will be seen' that as theshaft 15 is turned, the

arm is will successively contact with the various contact members 13,and in so -doing will complete the electrical circuits through theparticular solenoids which are connected with thecontacts upon thelegend disk, and the solenoids will in'turn operate their correspondingtype bars.- v

I lit is my intention to use aseparate legend disk carrying contactmembers tolwrite a single line or portion thereof;

lln Fig. 2 T have shown a series of disks 12' an'cl'each of-these disksmay be electrically connected. with the solenoids to cause the automaticwriting of 'a line or fraction thereof,-

As before stated, the'arms 14 are mounted upon a shaft 15, and thisshaft is at its end journaled in standards 16. Atone end of the shaft,there is rigidly mounted a plate 17 of permeable material, which ismounted opposite to a plate 18 also of permeable material. This plate iscarried upon one end of a shaft 19 which at its opposite end cartilllit)

ries a gear wheel 20. The shaft itself is mounted in, a standar'dfll.

At 22 there is represented a motor, which upon its shaft is providedwith a small gear wheel 28, meshing with the gear 20. Themotor may berun continuously when the machine is in operation, so that the disk 18is continuously operated. Suitable electrical connections may be madewith a 'coil18' whichis carried by the disk 18' and when this electricalcoil is energised, the disks 17' and 18 will-be attracted to each otherand the friction between the disks will be suilicient to cause the shaftto rotate.

It will be seen from the foregoing description that itfiis necessary tomaintain the electrical circuit between the' solenoids and the contactson the legend disks, so that the-circuit will be made at each contactpoint, and the relationship not be destroyed, as the arm 14 passes fromcontact point to contact point.

Ofcourse, the circuits may be maintained, 7 it a switch be mechanicallyheld closed by theoperator, but this would be somewhat inconvenient, andtherefore, I have provided a means for electricallymaintaming thecircuits until the word, phrase, or sentence be-- ing printed iscompleted. The mechanism for accomplishing this result comprises a'circular member 2 1, as shown in Fig. 1, which is carried by each of thedisks 12. -While this ring is circular in shape, it is not closed, therebeing a section'removed.

The arm 14 carries a portion which coni tac s withthis ring 524C. Thering is electrically connected with lllflbWO-POlIlli] switch,

through the coil V ently be described.

In Fig. 3, there is shown a series of relays 25. The relays and diskscorrespond in number, so that each disk has its correspond ing relay.These relays are of ordinary construction comprising a spool coil pro--vided with a stationary permeable core 26, and above each core is apivoted ari'nature 27, which is provided with a depending arm 28. Thisarm is in the path of a series of point switches, the arms of which areflexible, their inherent flexibility normally hold ing them fromcontacting with eaclrother. "When, however, the relay is energized, andthe armatu e is attracted toward the core, the arm 28 causes theseswitches to successively engage and thereby start the ariou'sinstrumentalities toreflecting the automatic operation of thetypewriter. 5

The arms Q9 and 30iorm the switch terminals for the circuit whichoperates the magnetic clutch 17. and 18, shown in Fig. 3.

The terminals 31 and 32 are. connected with the return circuit fronrthcarm 11' of each dish to the battery or sourceof power, while,

the contactmembers 33 and 3a are electrically connected in the circuitbetween the T his is secured by providing a short circuiting switchwhich shall place the windings of the 'relay' directly in circuit withthe source of energy' This particular switch may conveniently take theform of a button, switch or' a switch which may simulate the keysusually employed upon typewriters. The manner in which this key orswitch is electrically connected in the circuit may be noted at 35, inFig. 11.

There will beas' many of these switches or. keys as there are disks andrelays, and these switches may be grouped as shown in Fig. 4, either infront of the keyboard, as shown in Fig. 1, or at the side of the keyboard, or any other place-that. may. be convenient to mountthem. 'E'achswitch key will be provided with a suitable designation,- which willindicate to the operatorthe particular legend which will beautomatically written upon the pressure of the same.

It will be understood that as the button switch 35 is depressed, thecircuit from the battery or so'rice. of current is closed ..the relay,which causes the attractionof the armature 27. In its descent thearmature will cause the'successive closure of-the switches which are inits I path. The first switch 'to be closed will preferably be the oneclosing the circuit between the battery and the magnetic clutch,

so that theshaft'15 will immediatelyb'egin "to .turn. The next switchclosed'will 'comoperation, While: the closure of the third.

tact switch 24 and the winding upon the re? lay. However, the circuitthrough the re-.

plete the return: circuit between'the move able arm 14 and the source ofcurrent of the" is in contact with the contact strip 24, but as will bereadily seen, the arm and the strip 524 will contact 've'ry'shortlyafter the'shaft begins to turn, and when this takes place, current willcontinuously flow through. the

. coil of the relay while the arm 14 makes a sively engaging.the-various'contacts onthe disk and causin the automatic operation ofrevolution, during which tim'e'it is succesthe type 'bars. en the shafthas made a completerevolution, the arm 14 passes from' contact with thecontact strip '24, thereby breaking the circuit through the winding ofthe relay, and releasing. the armature 27, which in turn permits thevarious switches which have heretofore been heldby the armature-to openand break the circuits which have been heretofore closed bytheircontact- It will thus be seen that although 'all the arms carried by theshaft 15 will rotate, yet

'the circuits will be closed only through the partic'ular'disk whose'relay has been enerjgized by making electrical connectionsbypressing'the proper starting button.

" The showing in Fig.11- diagrannnatically' represents the electricalconnections between the source of energy-the solenoids,"distributingboard, magnetic clutch, legend disk and relay,..where a single disk isused.

Fig. 12 illustrates the electricalconnctidn between the sameinstrumentalities except that two legend disks are shown, and it *willbe apparent that the samefelectrical-"com nection will be employed inusing three or 1 more disks, as suggested in Fig. 12.

tionof the device'heretofore.explained. In

this modification, the legend. disks are" mounted directly-upon ashaft'so as to turn therewith, while 'the contact arms are stationarilymounted. Thisformof the invention permits variousdisks bearing different legends tobe put on orremoved from theshaft, p In this form oftheinvention, a shaft 36 is provided with a series lof grooveswhichextend substantially throughout the length of the shaft. The shaft isofinsulating Ina-1 terial and in the bottom of each grooveflthere Itypewriter,

form. of my invention. i

' is a strip of conducting material. This of therings 38. j These rings38 are of 'con-. ducting material,' and are insulated from each other,making contact only with one of the conducting strips 37, as heretoforeexplained. Upon each ring, there bears" a :brush 39,- and each brush isconnected with one of the posts 11 ofthe distributing, board.

It will'beunde'rstood that there area sufficient number of rings 38 andgrooves in the shaft to correspond with the keys of the d upon which theinvention is use Each legend disktis represented at 40, will" beprovided with a serles of inwardly ex? tending prongs or teeth 41,.which will be of proper form and size to fit'within-the grooves andcontact with the strips of conducting -ma terial 37. 7 These projections'41 are of conducting material, while the body of the legend disk ispreferably of non-con-' ducting material, wherefore these variousprojections 41 will be, suitably insulated from each other.

Each of the projections 41 is electrically connected with.a'corresponding binding post 42, and there are in, number binding postscorresponding with the number of projections 41, or in other words, thebinding posts correspond in "number with the keys of the typewriter.There is also a series of-binding posts. upon each disk 40, asrepresented at43, 'Thesecontact'members extend through thedisk andproject up n the face thereof. The inner ortions o these members 43 areconnectedln a suitable man- "ner with the'binding posts 42, theconnection being such'as will automatically produce the operation of thetype bars in proper sequence to print the desired word ,or legend.

Of course care must be taken that the disks be assembled inproperrelation tothe'shaft,

that is'that the projections 41 of the disks shall seat in the propergrooves in. the

shaft. p

Each one of these disks 40. is provided with the circular contact strip44 which is similar to the contact strip 24,.which has i kheretofore'been-described. In Fig. 5 there is illustrated"a'modificawhich is stationarily mounted adjacent ea'c legend disk,-thisarm being in proper posi- At 45 there is represented a contact an}:

.tionito contact withthe row ofcontact s 43,

being the same as those which have hereto- I fore been described withrespect to the other 'At 46. there is shown a magnetic'clutcharrangement which is of the same construe:

t'ion as that which has heretofore been exnames"? same as that describedin connection with.

my first form oi? machine.

Having described my invention, I claim:

1. In a machine of the character .de-

scribed, the combination with. a plurality of symbol carrying members ofelectrical -means, including a movable contact member for automaticallyselecting and operating in proper sequence a plurality of said symbolcarrying members.

2. In an automatic printing machine, a

plurality of symbol carrying members, electrically actuated means foroperating said symbol carrying members individually, a

legend member havin a series of contacts,

each of said. contacts" eingelectr-ically con-.

nected to .a' separate means for operating the symbol carrying member, acontact-mean ber adapted to successively engage the aforesaid contacts,and a source of electrical energy connected in circuit with the contactmember, and aforesaid electrically actuated means for operating thesymbol carrying members. I v 3 3. In an automatic printing machine, aplurality of symbol carrying members, electrically actuated means forindividually operating said symbol carrying members, a legend memberhaving a series of contacts, each contact being electrically connectedto a separate means for operating-the symbol carrying members, a contactmember adapted to successively engage the saidcontacts,

the said contact member and legend member being relatively movable, anda source .of electrical power connected in series with the contactmember and in parallel with the means for individually operatingthesymbol carrying member.

l. In a typewriter, the combination with plurality of type bars,andmeans for opera-ting said ty e bars, electrically operated means fordividually operating saidtype' bars, alegend disk having a series ofcontacts thereon, said contacts being individually electricallyconnected to a separate electrically operated means for" operating thetype bars, a contact member adapted tov successively engage the saidcontacts," the said contact member and legend disk being relativelymovable, a source of electrical energy connected in series with thecontact member, and in parallel with the means for individuallyoperatingthe type bars.

j to

ta ing each of thesaid-members withanindi 5. In -anautomatic printingmachine, a plurality of symbol carrying members, a

vidual symbol carrying-member, a legend member provided with a series ofcontacts,

said contacts being each connected with the windings of a separatesolenoid, a contactv member adapted to successively engage the aforesaidcontacts, the said contact member and legend member being-relatively'mov-' able, and a source of electrical'energy connected in serieswiththe contact member and in parallel with the windings upon thesolenoids. I j 6. In a typewriter, the combination with a plurality oftype bars, a plurality of solenoids, a member adjacent each solenoidandadapted to be moved as its solenoid is ener-p gized, operativeconnections between each of sa d members, and an mdivldual type bar,

a legend disk having a series-of contacts,

each contact being electrically connected with the windingflupon one ofthe solenoids, a. contact, member adapted to successivelyengage the saidcontacts, the said contact I member and legend disk being relativelymovable, and a source of electric energy connected in series with thecontact member and in parallel with thewinding upon each solenoid.

7; In an automatic; printing machine, a

'an individual symbol carrying'member, a

legend member provided with aseries of I contacts, said contacts beingindividually connected with the windings of a separate solenoid, acontactmember adapted to successively engage the aforesaid contacts thesaid contact member and legend member being relatively movable, and .asource of electrical energy connected. in series with the contact memberand in parallel with the windings upon each solenoid. v a

' -8. In a typewriter, the combination with-a plurality'of type bars,apluralityfiof solenoids, each solenoid being-provided with a movablecore, operative connections; between each core and 1 an individual typebar, a legend disk having a series of contacts, each contact beingelectrically connected with the winding upon one of the solenoids, acontact member adapted to successivelyengage'the said contacts, the saidcontact .member and legend disk being relatively movable, and a sourceof electrical energy connected 1n series with the contact membenand inparallel With-the winding upon each solenoid.

9. In a typewriter, the combination with a plurality of type bars, aplurality of solenoids, a member adjacent each solenoid which is adaptedto be moved as its solenoid is energized, operative connections betweeneach ofsaid members and an individual type bar, a legend diskstationarily mounted, a plurality ofcont'a'ct members carri dby said.

disk, electrical connection between each of said disks and the windingupon one of the solenoids, a contact member adapted to-successivelyengage each of the said contacts, means for causing said contact member.to rotate, and ,a source of electrical energy connected with thesolenoids and with the movable contact member.

l 0. In a typewriter, the combination with a plurality of type bars, aplurality of electromagnetic devices, each of said devices beingoperatively connected with a type bar so as to move the same when thedevice is electrically energized, a legend disk having a series ofcontacts, each of said contacts being electrically connected with thewind ing upon one of the electromagnetic devices, a contact memberadapted to successively engage-the contacts on the disk, and a source.-of electrical energy connected in serie with the contact member and inparallel with the windings upon each of the electromagnetic devices. a

11. In a typewriter, the combination with a plurality of type bars, aplurality. of electromagnetic devices, operative connections betweeneach electromagnetic device and a type bar whereby the type bar will beoperated-as the electromagnetic device is energized, a plurality oflegend disks, each disk having a series of contacts thereon, electricalconnections between each contact 011 the disks and the windings upon oneof the electromagnetic devices, a shaft, a plurality of contact memberscarried by said shaft, there being one contact member adjacent eachdisk, said contact member being adapted to engage in succession thecontacts upon the disk, means for rotating said shaft, a source ofelectrical energy connected in series with the contact member and inparallel with the windings upon eachof the electromagnetic devices;

12. In a typewriter, the combination with a plurality oftype bars, aplurality of electromagnetic devices, each of said devices beingoperatively connected with one of the type bars, a legend disk, a seriesof contact upon said legend disk, electrical connections between eachofsaid contact members and one of the electromagnetic devices, a contactmember adapted to engage each of the contacts upon the. disks insuccession, means for moving said contact member, a pluralityofswitches, the closure of one of said switches causing the means formoving the contact member to operate, another of said switches closingthe circuit through the contact member, a member adapted by its movementto cause said switches to successively close, and a source of electricalenergy connected in series with the contact member and in parallel withthe winding upon each of the electromagnetic devices.

13. In an automatic printing machine, a.

games? plurality of symbol carrying members, electrically actuated"means for individually operating said symbol carrying members, a legendmember having a series 01 contacts, each contact being electricallyconnected to a separate means for operating the symbol carryinglllQllllXlS, a contact member adapted to;success1vely engage the saidcontacts, the said contact member and legend member being relativelymovable, a circuit connected with a source of electrical energy, andconnected in series with the contact member and in parallel with themeans for individually operating the symbol carrying member, means forclosing the circuit, and means for holding the circuit closed throughouta printing operation, aid means automatical y opening the circuit whenthe printing is complete.

14:. In an automatic printing machine, a plurality of symbol carryingmembers, electrically actuated means for individually operating saidsymbol carrying members, a legend member having a series of contacts,.each contact being electrically connected to a separate means foroperating the symbol carrying members, a contact member adapted tosuccessively engage the said contacts, the said contact member andlegend member being relatively movable, a motor for cans-- ing therelative movement beween the legend member and contact member, a circuitconnected with a source of electrical energy and connected in serieswith the contact member and in parallel with the motor, and the meansfor individually operating the symbol carrying member, means for closingthe circuit, and means for maintaining said circuit closed during aprinting operation and automatically opening the circuit, at thecompletion of the printing.

15. In a typewriter, the combination with a plurality of type bars, aplurality of electromagnetic devices, each of said devices beingconnected with a type bar, a legend disk having contacts thereon, eachoi? said contacts being connected with the winding upon one of theelectromagnetic devices, movable contact member adapted to engage thecontacts upon the'said disks in succession, means for causing saidcontact member to move, a source of electrical energy con nected inseries with the contact member and in )arallel with the-winding uponeach of the e ectromagnetic members, said source of electrical energyalso being connected in series with the means for causing the contactmember to move, a plurality of: switches,

one of said switches lying in circuit with the movable contact member,the other of said switches lying in circuit with the means for causingthe contact member to move, a

member adapted to engage said switches to cause them to successivelycontact.

16. In a typewriter, the combination with tl' plurality type bars, aplurality of elec-' tromagnet c devices, each of said devices beingconnected with a type bar, a legend disk having contacts thereon, eachof said contacts being connected with the windingsion, means for causingsaid 'contactmember to move, a source of electrical energy connected inseries with the contact member. and

in parallel with the winding upon each ofthe electromagnetic members,said source of electrical energy also being connected'in senes with themeans for causing the contact member to mo've,a plurality of switches,one of said switches lying in circuit with the movable contact member,the other of said switches lying' in circuit with the means for causingthe contact member to move. a

member-adapted to engage said switches, to 1 cause them to successivelycontact, and

means for retaining the member which engages the said switches toholdsaid switches closed while the contact'member successively engagesthe contacts on the disk.

. 17. .In a typewriter, the combination with a plurality of type bars, apluralityhof electromagnetic devices, each of said devices 30f diskhaving contacts thereon, each of saidcontacts being connected with theWlIlCllIlg' upon one of the electromagnetic devices, a

being-connected with a type bar, a legend movable contact member adaptedto connect .the contacts upon the said disks in suc-.

cession, means for causing said contact member to move, a source ofelectrical energy connected in series with the contact mem her and inparallel with the winding upon each of the electromagneticmembers, saidsource of electrical energy also being connected in series with themeans for causing the contact member to move, a plurality of switchesarranged adjacent each other, one

of said switches lying in circuit with the movable contact member,another of said switches lying 1n circuit with the means for moving. thecontact member, a relay, an armature adapted to be moved as the relaytromagnetic devices, each of said devices" being operatively connectedwith one of the type bars, 'a legend disk having a series of contactsthereon, each contact being electrically connected with the winding uponone of the electromagnetic devices, a segmented contact strip carriedby, said disk, a movable contact m'ember'adapted to -successively engagethe said contacts, and also to engage with the segmented contact strip,means for moving said contact member, a source ofelectricalenergyconnected in series with the contact member, also with the means forcausing the 'moving-of the contact member andwith the segmented contactstrip, said ,source of electrical energy being connected in parallelwith the -windings upon the electromagnetic devices, a relay, anarmature for said relay, a plurality of switches lying in the path ofmovement of' the armature, one'of said switches being connectedin serieswith the movable contact member, another of said switches beingconnected in series with the means for causing the movement ofthe'contact member, and another of said switches being connectedinseries'with the winding upon this relay, a switch for directlyconnecting the winding upon the relay with the source of electricalenergy, whereby the armature of the relay is depressed and the aforesaidswitches are closed, the armature being retained in depressed positionwhile the contact member successively engages the contacts upon thelegend disk.

In testimony whereof, I hereunto aflix my signature in the presence oftwo witnesses;

ARTHUR R. BULLOCK.

Witnesses:

N. C. HUBBARD, A. J. .Hunsoiv.

